AVPTC Installation Manual

14
17.2 Electric Heater Kit Testing
1. Select the electric heat icon after entering the air handler
menus while using the Cool Cloud phone application.
2. Select any value less than 50% for low stage operation
and any value greater than 50% for high stage operation.
3. Confirm thermostat heating and cooling calls function
properly for high stage operation.
18 Dehumidification
Dehumidification allows the air handler’s circulator blower to
operate at a reduced speed during a combined thermostat call
for cooling and a dehumidification call from the thermostat or
humidistat. This lower blower speed increases dehumidification
of the conditioned air as it passes through the indoor coil. The
control board is equipped with a 24 volt dehumidification input
(DH) located on the thermostat wiring connector. The terminal
can be configured to enable dehumidification when the input is
energized or de-energized. When using an external dehumidistat,
connect it between the R and DH terminals. If the humidistat
closes on humidity rise or the thermostat energizes this terminal
when dehumidifcation is required, set the control board Dehum
Logic Menu () to “” using the push buttons or Cool Cloud
HVAC phone application. If the humidistat opens on humidity or
the thermostat de-energizes this terminal when dehumidification
is required, set the Dehum Logic Menu to “” using the push
buttons or Cool Cloud HVAC phone application.
19 Auxiliary Alarm Switch
The control is equipped with a 24VAC Aux Alarm to be
used for a condensate switch install (designated by CON-DENSATE
IN/OUT on the control). By default, the connected
AUX switch is normally closed and opens when the
water level in the evaporator coil base pan reaches an
undesirable level. The control responds by displaying a “”
error code and turning off the outdoor condensing
unit. If the AUX switch is detected to be in the closed
position for 30 seconds, normal operation resumes and
the error message is no longer displayed.
20 Start-Up Procedure
Figure 21
The air handler includes three on-board push buttons allowing
users to navigate indoor and outdoor system menus.
The Right and Left buttons allow the user to scroll through
the main menus and to then scroll through available options
within specific menus. The Center button is used to
enter into a main menu and to then permanently select
options within those menus.
NOTE: After scrolling to the desired option within a menu,
that option may be flashing on the 7-segment displays.
This indicates the option has not been officially selected.
Pressing the Center button two times will select that
option. The first press will stop the flashing. The second
will make the selection official and return you to the main
menu.
21 Accessory Control (Humidifiers, Dehumidifiers,
Ventilators)
If an external humidifier, dehumidifier or ventilator is installed,
it may require airflow from the HVAC system to
function properly.
1. Make sure the installed 24VAC thermostat is capable of
controlling the accessory or accessories.
2. Connect the appropriate accessory control wires to the
accessory devices from the thermostat (see thermostat
manual for connection and setup instructions).
3. If the thermostat is capable of providing a continuous fan
call (G signal) during accessory operation:
Make sure to connect the thermostat G terminal to the G
terminal on the indoor unit. Setup thermostat to ensure
G signal is energized during accessory operation.
FIgure 22
4. Select the appropriate fan only airflow for the accessory
using the indoor unit push button menus or the Cool
Cloud HVAC phone application.
5. Using the thermostat, independently test each accessory
in addition to the independently testing continuous fan
mode.